JPS58202489A - Display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention relates to a display device, and more particularly to a display device that smoothly displays Kanji characters using, for example, a Kanji code, which handles one figure or character using a two-byte code.

Prior Art Conventionally, in this type of display device, one figure or character is represented by one byte code and displayed in one display area, such as conventional alphabets, numbers, kana characters, etc. (hereinafter simply referred to as "kana characters, etc."). '') is displayed in JI88 unit code, and there is one in which one figure or character is expressed in 2-byte code and displayed in twice the display area, for example, in Kanji code. However, 80 characters of the JI88 unit code may be displayed on one line of the display screen. In this case, especially when attempting to display the 800th kanji character, a situation occurs in which the characters are displayed one half in half and the remaining half is displayed at the beginning of the next line. Therefore, especially with regard to kanji, it is necessary to set restrictions on the number of characters or the display position, and there are disadvantages in that the end of the display line must always be kept in mind.

Purpose of the Invention The purpose of the present invention is to eliminate the above-mentioned conventional problems, and even if one figure or character is represented by a 2-byte code and the other is represented by a 1-byte code. The object of the present invention is to provide a display device that can perform these displays without any restrictions.

Summary of the Invention In the present invention, one figure or character can be expressed with a two-byte code, such as a kanji, and one figure or character can be expressed with a one-byte code, such as the kana character of the J-Tech S8 unit code. This is applied to a display device configured such that the former requires twice as much display area as the latter. In this display device, a code for distinguishing between kanji and kana characters is stored in a display code buffer that stores character codes to be displayed.

In addition, two consecutive addresses are given to the Kanji code, and a means is provided to distinguish between the information of the first address and the information of the second address, and the end of the display of n characters in one line, for example, the first information of the 800th character of the Kanji code. 1. means for determining whether or not the display interval is extended;
A means for determining whether the first character of the line is the second information of the kanji code or 100, and a means for stopping the display of the first character by this determination means, and the first information of the kanji code for the nth character is provided. Even if there is a problem, the characters can be displayed without missing any characters.

EMBODIMENT OF THE INVENTION Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a display circuit of a display device according to an embodiment of the present invention. The display device in this example is
Display code buffer that stores character codes to be displayed]
, a kana character second-class character pattern generator 2 that stores dot patterns such as kana bunsai, a kanji pattern generator 3 that stores kanji dot patterns, and a character babana generator 2 or 3.
It has a parallel/norserial conversion circuit 4 for converting the dot pattern outputted from the dot pattern from parallel to serial, and a cathode ray tube circuit 5 such as a CR or T.

FIG. 2 is a diagram showing the state of display characters displayed on the display screen. Here, the number of displayed characters in one line is assumed to be X characters horizontally and Y lines vertically, based on the size of the above-mentioned kana characters, etc. One section 6 divided vertically and horizontally can contain one figure or character.
This is a display area for character patterns, such as kana characters, expressed in bytecodes. A figure or character expressed by a two-byte code, such as a kanji pattern, is displayed using an area 71.72 that is twice as large as a kana character.

FIG. 3 is a diagram showing the contents of the display code buffer 1. In this example, 2 characters per address for character code storage.
A device with a storage capacity of bytes is used. For codes such as kana characters, one address 1-Konomi code is entered, and in order to distinguish it from the kanji code described later, the 2' bit is set to 1.
The kanji code is set to 0". The same code is entered in two consecutive addresses, and the t bit is set to 11".

Figure 4 shows 1 of the contents of the character pattern generator 2 such as kana characters.
FIG. For example, each character pattern, such as the pattern of the character [AJ, is composed of 12 dots and 24 vertical dots, and is stored.

FIG. 5 is a diagram showing the dot configuration of kanji characters. In this example, the kanji is composed of 24 dots horizontally and 24 dots vertically. Therefore, in the case of displaying kanji characters, an area that is twice as large as that for displaying kana characters and the like shown in FIG. 4 is required.

FIG. 6 is a diagram showing part of the contents of the Kanji pattern generator 3. The kanji pattern is pattern flock I shown in Figure 5.
A, IB, 2A, 2B...24A, 24B are arranged and stored in this order.

FIG. 87 is a diagram showing in detail the configuration of an embodiment of the present invention. Of the output from display code buffer 1, 216
Binoto becomes an enable signal for the Kanji pattern generator 3, and passes through an inverter circuit 13 and becomes an enable signal for the Kana character pattern generator 2. Furthermore, the 216 bits are input to the Kanji code determination circuit 8, where it is determined whether the address is the first address or the second address, and as a result, signals a and b are output. Of the output of the display food buffer 1, 2° to 215 bits serve as addresses for the character pattern generators 2 and 3, respectively. The outputs of these character pattern generators 2 and 3, that is, dot patterns, are inputted in parallel to a parallel serial conversion circuit 4 having a shift register configuration.

The first signal a of the outputs of the kanji code determination circuit 8
The signal of the 80th character in one row is input to the row determination circuit 9, where the row bed is determined. The output of the line end determination circuit 9 and the signal of the display section (1 to 80 characters) are sent to the display extension circuit 1.
It is input to 0.

The second signal b1 and the first signal of the output of the kanji code determination circuit 8 are input to the line start determination path 11, where the starting position in one line is determined. Line start determination circuit 1
The output of J: display extension (b) path 10 is input to the display stop circuit 12, and its output and the output of the parallel/serial conversion circuit 4 are input to the AND gate 14. The output of this AND gate 14 is sent to the Fraun tube circuit 5 (ζ).Next, we will explain the operation of the non-embodiment.The display code buffer 11 stores the square code to be displayed.This display code The character code from the buffer 1 is input to the character pattern generators 2 and 3. The dot patterns produced by the character pattern generators 2 and 3 are set in the parallel-to-serial converter circuit 4i, and are input to the cathode ray tube circuit 5.
A dot pattern is output serially in synchronization with the scanning. Here, as mentioned above, kana characters etc. have 12 horizontal dots,
It shall be displayed with 24 dots vertically, and 2 dots horizontally for Japanese characters.
It is assumed that the display is 4 dots and 24 dots vertically. Since the correspondence between the address of the display code buffer 1 and the display screen is fixed, the character [A-1 is entered at the address (1,1) on the display screen, and the character [A-1 is entered at the address (2,
1) To display the characters ``Unit'', as shown in Figure 3,
Move to the corresponding address of display code buffer 1
- Write the character code corresponding to A J or t' B J. Here, one word of the address word is 20 to 2
16o) As mentioned above, the data is set to 17 bits.

In one word, 10'' is written in 21 bits to indicate that it is a kana character or the like at the same time as the character code. As a result, the output from the above address of the display code buffer 1 enables the kana character pattern generator 2, and the output pattern is set in the serial conversion circuit 4 and sent to the Brawan tube circuit 5. As a result, a 12-dot makashi pattern, that is, the characters 1-kan and rBJ are displayed on the display 11.

When indicating kanji in this column (see Figure 3-
The figure shows two fast read addresses, in this example address (80,1), (t,2) and address (2+
”) Insert the same kanji code into (d + 2), and write 1″ into 216-do-no-1 of each set. The first Kanji code 1 word enables the Kanji pattern generator 3, as shown in FIG.
2do y5 is output, parallel serial conversion circuit 1F84
-This set is ready. The serial output of this variable circuit 4 is applied to the f subrowan kanji 5, and the kanji characters in the portion IA (hatched portion) shown in FIG. 5 are displayed on the display screen.

Next, from the second Kanji coat 1 node, the Kanji pattern generator 3 is enabled. Same as IJ statement!
Then, the 18 parts of the character Baku-712F soto shown in FIG.

The output of this conversion circuit 4 is fed to the cathode ray tube circuit 5: and the kanji characters in the part IB shown in FIG. Ru. When the display 1 section signal is from 1 to 80, the cathode ray tube circuit 51 outputs one output from the parallel-serial converter circuit 4. Therefore, Fig. 3 1' Akane Akane <,
If the 11th code S* of the alphabetic code is inserted into the 80th character, only the left single part of the display shown in FIG. 5 will be displayed. Therefore, the display section (1 to 80
) is extended by the extension circuit 10, the right half shown in the fifth song is also displayed once at the 81st character.

In addition, in the first character of the next line, the line start determination circuit 11 ejects the line start: RO so that the right half of the fifth line is not displayed, and the display section (11 to 80) is Regarding the vertical position at the beginning of the row, the display is stopped by the display stop circuit 12.

As a result, the first character is not displayed, so that a display as shown in FIG. 2 is obtained.

In this way, in the embodiment of the present invention, when displaying kanji characters, a display device configured to use approximately twice the area used when displaying kana characters, etc. is used, and when displaying kana characters, etc., in the display code buffer, In addition to entering a code to distinguish between and kanji, two consecutive addresses are added to the kanji code, and when the code representing the @ character is output, 1. Since the display is configured to extend or stop the display section using the start determination circuit and display stop circuit, it is possible to completely eliminate restrictions on the number of kanji characters or the display position, and to There is no need to be aware of this.

Although one embodiment of the present invention has been described above, the present invention is not limited to this (') and can be modified in various ways. For example, the present invention can be applied not only to Kanji codes but also to , a display device ζ using a graphic code, etc. may also be applied.

According to the present invention, one figure or character is represented by one byte code, and one (D display area) and one figure 1 cedar or sentence - F are expressed by 2 byte codes. When the display area c is mixed with the bait code that is displayed with about 2 or 1 sound, the display at the end of the line is no longer 1- or f, so the number of kanji characters or the display position can be changed. It is possible to completely eliminate the constraints on display, and there is no need to be conscious of the end of the display line.1 The simple and simple diagram of 12 pages in Fig. 1 is the result of the present invention. 1022 of the display device showing one embodiment of the present invention, FIG. 2 shows the display IIIilfj, FIG. 3 shows the contents of the display code buffer, and FIG. 4 shows the contents of the Kana Fumiko et al. 5 is a diagram showing the kanji pattern, 6"4 is a diagram showing the contents of the kanji pattern generator, and FIG. 7 is a detailed view of the main part of FIG. 1.

1...Display code buffer 2... Tosu Fumiko etc. pattern generator 3...Kanji pattern generator 4...Parallel serial circuit 5... Bulawan f-road Agent Patent Attorney Usui 1) Li g”:.

'7 1 Figure 2 1'3 Diagram address Saitozu Figure 9 Figure 17b 15

Claims (1)

[Claims] In a display device in which a pattern generator outputs a dot pattern for display codes that are sequentially output from a display code buffer that stores display codes for characters, figures, etc. to be displayed, one character or figure can be converted into codes with different numbers of bytes. A code for distinguishing these codes is attached to the corresponding display code and stored in a display code buffer, and at least some characters or figures are represented by multiple byte codes, and the display code buffer contains multiple byte codes. A method for distinguishing between the first address and the next address in order to display half of the multi-fold display area based on the first address information and display the remaining half using the next address information. 1, a second means for determining whether or not one figure or character is the first of a plurality of byte codes at the display end of one line; a third means for extending the section; a fourth means for determining whether or not the one figure or character represented by a plurality of byte codes is displayed at the beginning of one line; By means of
A fifth means for stopping the display of one display area at the beginning of the display is provided to prevent display characters from being missing even if the beginning of a single figure or character expressed in multiple byte codes appears at the end of a line to be displayed, and to A display device characterized by a display device in which one figure or character is expressed in multiple byte codes at the beginning of a line, but is not displayed even if the next one appears.